/Engine/Source/Runtime/Interchange/Engine/Public/InterchangeFilePickerBase.h
This function must set OutFilename with a valid file that can be import to create the specified TranslatorType. We expect the user to see a file picker dialog when the editor is available.
virtual bool FilePickerForTranslatorType ( const EInterchangeTranslatorType TranslatorType, [FInterchangeFilePickerParameters](API\Runtime\InterchangeEngine\FInterchangeFilePickerParameters) & Parameters, [TArray](API\Runtime\Core\Containers\TArray)< [FString](API\Runtime\Core\Containers\FString) > & OutFilenames )